Pete's SPAS 12

Franchi SPAS 12. Some variants. Many hands... but not those ones.

Smiley's Combat Realism Overhaul

Aims to make the game extremely deadly by making the ballistics more realistic.

StixsworldHD's HD-4K Experience

This mod/preset is designed to help you get the sharpest, cleanest image you may get out of your game without the need to force anything upon your gpu and taken a massive performance hit.

Half life Rebalance

HARDMODE ONLYIncrease Damage for player and monsters, less spongey bullpoopy.HARD MODE ONLYalso headshots!!HARD MODE ONLY

Steam HL Property Settings

This "mod" is a zipped folder containing two .txt files. Copy and paste the top line of text into your property settings, there is a low and high resolution .txt files. Below is a link to the source webpage, and if that doesn't work then I have listed the pages you need to click on in order to get there.

Basic Combat Rebalance

A simple skill.cfg edit that aims to make combat quicker and more exciting.

Gitfest Series

A map series of 6 maps for the Steam game Sven Co-op